Self-perforating ink container



March 219 1950 E. G. si-lELToN SELF-PERFORATINC INK CONTAINER Filed April l1, 1946 F\ G U R E n `mm Y llllllllllll \r FIGURE 2 v "vvv I l l l FIGURE 4 3 E Dn U G F.

IN VEN TOR.

EDGAR G SHELTON ATTI; RNEYB Patented Mar. 21, 1950 UN IIED; SIATE S PATENT O FF I C E SELF-PERFORATING INK CONTAINER Edgar Gene Shelton, Ponca City, Okla.

Application April 11, 1946, Serial No. 661,409

1 Claim. l

The invention relates to a writing instrument and more particularly to an ink cartridge Writing pen.

The primary object of the invention is the provision of a pen of this character, wherein the ink cartridge for supplying ink to the point is detachably mounted so that there will be no leakage of ink during the feeding period and the cartridge is punctured in a novel and unique manner for the iiow of ink to the writing point of the pen.

Another object of the invention is the provision of a pen of this character, wherein the nipple for the point has fitted detachably therein a puncturing element, which on the fitting of the ink cartridge to this nipple will perforate the said cartridge so that ink iiow will be established in the pen for writing purposes, the puncturing element being of novel construction and unique in its mounting within the pen.

A further object of the invention is the provision of a pen of this character, wherein the cartridge is fitted within the same so as to assure against leakage during the use ofthe said pen, the cartridge after the emptying of the same of its content can be thrown away and a new cartridge substituted.

A still further object of the invention is the provision of a pen of this character, which is simple in construction, thoroughly reliable and eiiicient in operation, strong, durable, neat in appearance, readily and easily operated to effect the flow of the ink from the cartridge to the point of the pen, and inexpensive to manufacture.

With these and other objects in view the invention consists in the features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawing, which discloses the preferred and modied forms of construction of the invention and pointed out in the claim hereunto appended.

In the accompanying drawing:

Figure 1 is a fragmentary sectional view through a pen constructed in accordance with the invention.

Figure 2 is a view similar to Figure 1 showing a slight modification of ink cartridge and iittings.

Figure 3 is a vertical longitudinal sectional view the punch member for the pen shown in Figure 1.

Figure 4 is an end View of the member.

Similar reference characters indicate corresponding parts throughout the several views in. the drawing.

(Cl. 1Z0-45.4)

Referring to the drawing in detail, particularly Figure 1, the pen constituting the present invention, comprises a cylindrical shell forming a part of the barrel body l0 of the said pen. having at one end the usual nipple I i which has in its opening l2 a feed plug i3 for the fitting therein of the writing quill lli which is generally termed the pen point.

The barrel body lil and the opening i2 in the nipple Il are separated by a dividing web i5 in this instance, having a centrally located threaded clearance or vacancy for accommodating a punching nozzle I6, which is detachably screwed into the threaded clearance or vacancy and has a longitudinal bore i1 leading to the opening l2 at its outer end and through a longitudinally slitted tapered punch tip i3. This tip protrudes through a cupped elastic sealing washer I9, which is seated in the barrel body l!! against the web l5 and about the said tip I8.

Adapted to be telescopically fitted to the barrel body l0, is an ink cartridge Ril having a thinned thrust end 2l which on pressing against the tip I8 becomes fractured or punctured, so that inl; of the cartridge can freely ow through the bore il into the opening I2 and the plug i3, whence such ink is delivered to the quill or point icl. The end 2l of the cartridge 2li will seat in the washer I 9, where it becomes sealed about the tip i3 to avoid leakage of ink at this point. The cartridge 2li is frictionally held in the barrel body IB for confinement therein in any suitable manner.

In Figure 2 of the drawing, there is shown a slight modication of the pen, wherein the cartridge is formed with a reduced externally threaded puncturing end 23, and which is designed to be punched by the punch member 24, which is of less length than the member iii, yet operates in an identical manner. 23 is screwed into a coupling sleeve 25 fixed in the barrel body 2t, and this cartridge creates a continuation of the latter.

What is claimed is:

In a fountain pen of the refilling ink tube cartridge type, the combination which comprises a substantially hollow barrel forming a handle and having a nipple integral therewith and extended from the writing end thereof, said barrel having a transversely disposed web dividing the opening in the lower end of the barrel from the nipple, and said web having a centrally disposed threaded bore therethrough, and an ink tube punching nozzle having a threaded base positioned in the said threaded bore of the web and having an extended conical shaped inner end The cartridge at the end` 3 with transversely disposed slits therethrough extended into the adjoining end of the barrel and positioned to puncture an ink tube in the barrel, said nozzle having a longitudinally disposed ink carrying channel therethrough, and a cup shaped elastic sealing washer in the lower end of the barrel and through which the said conical shape inner end of the nozzle extends with a portion of the base thereto threaded in said sealing washer.

EDGAR GENE SHELTON.

4 REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date Averill Oct. 30, 1923 Pollock Jan. 24, 1928 Bell June 30, 1931 Johndohl et al. Jan. 18, 1938 Berger May 6, 1941 

